An issue was discovered in MediaWiki before 1.35.10, 1.36.x through 1.38.x before 1.38.6, and 1.39.x before 1.39.3. An auto-block can occur for an untrusted X-Forwarded-For header.
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "1.35.10"
},
{
"introduced": "1.36.0"
},
{
"fixed": "1.38.6"
},
{
"introduced": "1.39.0"
},
{
"fixed": "1.39.3"
}
]
}